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Finding the Fourth Proportional to 660,066.77, 910,735.95 and 373,586.86

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Solution

The fourth proportional to 660,066.77, 910,735.95 and 373,586.86 is: 515,461.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,066.77 : 910,735.95 = 373,586.86 : x
  2. Step 2: Convert to fraction form
    660,066.77/910,735.95 = 373,586.86/x
  3. Step 3: Cross multiply
    660,066.77x = 910,735.95 × 373,586.86
  4. Step 4: Simplify right side
    660,066.77x = 340,238,983,849.62
  5. Step 5: Solve for x
    x = 340,238,983,849.62/660,066.77
  6. Step 6: Final answer
    x = 515,461.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.